A collection of simple, free tools for everyday use. No login required.
Convert between different distance units.
Calculate your Body Mass Index (BMI) quickly and easily.
Find the number of days, weeks, or months between two dates.
Convert between kilograms, pounds, ounces, and more.
Convert between litres, gallons, cups, and more volume units.
Convert between Celsius, Fahrenheit, and Kelvin.
Convert between volts, amps, watts, and ohms with unit prefix support (e.g., mV, kW, mA).
Convert between km/h, m/s, mph, knots, and other speed units.
Convert time between different global time zones easily.
Convert between bytes, kilobytes, megabytes, gibibytes, tebibytes, and more.
Convert between Pascal, bar, psi, atm, Torr, mmHg, and more.
Calculate your exact age from your birth date.
Calculate the value of a given percentage of any number.
Generate a QR code for any text or URL instantly.
Set a future date and time and track the countdown in real time.